Home / 112,790.07-155,650.34-61,802.39

Finding the Fourth Proportional to 112,790.07, 155,650.34 and 61,802.39

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Solution

The fourth proportional to 112,790.07, 155,650.34 and 61,802.39 is: 85,287.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,790.07 : 155,650.34 = 61,802.39 : x
  2. Step 2: Convert to fraction form
    112,790.07/155,650.34 = 61,802.39/x
  3. Step 3: Cross multiply
    112,790.07x = 155,650.34 × 61,802.39
  4. Step 4: Simplify right side
    112,790.07x = 9,619,561,929.05
  5. Step 5: Solve for x
    x = 9,619,561,929.05/112,790.07
  6. Step 6: Final answer
    x = 85,287.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.